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authorGreentime Hu <greentime@andestech.com>2017-10-25 14:46:21 +0800
committerGreentime Hu <greentime@andestech.com>2018-02-22 10:44:34 +0800
commitbeebdeaa1d39125ef5a38818024e93b365621a3b (patch)
tree06555b1ada087790b3ae25b7946e5ffa54b09b7e /arch/nds32/kernel
parente2f8b5c028f3eb81ed0507ed1a3b05ec6013ce56 (diff)
nds32: Device tree support
This patch adds support for device tree. Signed-off-by: Vincent Chen <vincentc@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/nds32/kernel')
-rw-r--r--arch/nds32/kernel/devtree.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/nds32/kernel/devtree.c b/arch/nds32/kernel/devtree.c
new file mode 100644
index 000000000000..bdce0fe5af9f
--- /dev/null
+++ b/arch/nds32/kernel/devtree.c
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2005-2017 Andes Technology Corporation
+
+#include <linux/bug.h>
+#include <linux/printk.h>
+#include <linux/of_fdt.h>
+
+void __init early_init_devtree(void *params)
+{
+ if (!params || !early_init_dt_scan(params)) {
+ pr_crit("\n"
+ "Error: invalid device tree blob at (virtual address 0x%p)\n"
+ "\nPlease check your bootloader.", params);
+
+ BUG_ON(1);
+ }
+
+ dump_stack_set_arch_desc("%s (DT)", of_flat_dt_get_machine_name());
+}